# Copyright (c) 2020, Manfred Moitzi
# License: MIT License

from pathlib import Path
import ezdxf

from ezdxf.render.forms import sphere, cube
from ezdxf.addons.pycsg import CSG

DIR = Path("~/Desktop/Outbox").expanduser()
NLENGTH = 0.05

doc = ezdxf.new()
doc.layers.new("csg", dxfattribs={"color": 1})
doc.layers.new("normals", dxfattribs={"color": 6})

doc.set_modelspace_vport(6, center=(5, 0))
msp = doc.modelspace()

cube1 = cube().translate(-0.5, -0.5, -0.5)
sphere1 = sphere(count=32, stacks=16, radius=0.5, quads=True)

union = (CSG(cube1) + CSG(sphere1)).mesh()
union.render_mesh(msp, dxfattribs={"layer": "csg", "color": 1})
union.render_normals(
    msp, length=NLENGTH, relative=False, dxfattribs={"layer": "normals"}
)

subtract = (CSG(cube1) - CSG(sphere1)).mesh().translate(2.5)
subtract.render_mesh(msp, dxfattribs={"layer": "csg", "color": 3})
subtract.render_normals(
    msp, length=NLENGTH, relative=False, dxfattribs={"layer": "normals"}
)

intersection = (CSG(cube1) * CSG(sphere1)).mesh().translate(4)
intersection.render(msp, dxfattribs={"layer": "csg", "color": 5})
intersection.render_normals(
    msp, length=NLENGTH, relative=False, dxfattribs={"layer": "normals"}
)

doc.saveas(DIR / "csg_sphere.dxf")
